Question 1

Which of the following is formed when the chorionic villi burrow into the endometrial lining?

Accepted Answer

A)  Yolk sac 
B)  Placenta 
C)  Umbilical cord 
D)  Ductus venosus 
A)  Yolk sac 
B)  Placenta 
C)  Umbilical cord 
D)  Ductus venosus B

Question 2

What is the name of the fine downy hair that covers the fetus?

Accepted Answer

A)  Vernix caseosa 
B)  Lanugo 
C)  Colostrum 
D)  Meconium 
A)  Vernix caseosa 
B)  Lanugo 
C)  Colostrum 
D)  Meconium B

Question 3

How is a child with X and Y chromosomes best described?

Accepted Answer

A)  Having Down syndrome 
B)  Hemophiliac 
C)  Immature 
D)  Male 
A)  Having Down syndrome 
B)  Hemophiliac 
C)  Immature 
D)  Male D

Question 4

Which of the following is a disclike structure where the fetal and maternal circulations meet (baby eats,excretes,and breathes at this site)?

Accepted Answer

A)  Umbilicus 
B)  Placenta 
C)  Primary germ layers 
D)  Zygote 
A)  Umbilicus 
B)  Placenta 
C)  Primary germ layers 
D)  Zygote

Question 5

Which of the following is least true of prolactin?

Accepted Answer

A)  Secreted by the anterior pituitary gland 
B)  Stimulates the mammary gland 
C)  Is an adenohypophyseal hormone 
D)  Plays the primary role in the milk let-down reflex 
A)  Secreted by the anterior pituitary gland 
B)  Stimulates the mammary gland 
C)  Is an adenohypophyseal hormone 
D)  Plays the primary role in the milk let-down reflex

Question 6

Which of the following is least related to the sex chromosomes?

Accepted Answer

A)  XX 
B)  XY 
C)  Autosomes 
D)  X-linked 
A)  XX 
B)  XY 
C)  Autosomes 
D)  X-linked

Question 7

The conversion of the corpus luteum to the corpus albicans

Accepted Answer

A)  is characteristic of the nonpregnant state. 
B)  is due to the secretion of hCG. 
C)  prevents ovulation in the next menstrual cycle. 
D)  occurs only in twinning. 
A)  is characteristic of the nonpregnant state. 
B)  is due to the secretion of hCG. 
C)  prevents ovulation in the next menstrual cycle. 
D)  occurs only in twinning.

Question 8

A mother-to-be infected with the rubella virus gives birth to a child with multiple birth defects.Which of the following is descriptive of the defects?

Accepted Answer

A)  Hereditary 
B)  Encoded in the mother's DNA 
C)  Congenital 
D)  Contagious 
A)  Hereditary 
B)  Encoded in the mother's DNA 
C)  Congenital 
D)  Contagious

Question 9

Which of the following organs involutes following delivery of baby?

Accepted Answer

A)  Vagina 
B)  Fallopian tubes 
C)  Ovaries 
D)  Uterus 
A)  Vagina 
B)  Fallopian tubes 
C)  Ovaries 
D)  Uterus

Question 10

The milk let-down reflex is most associated with

Accepted Answer

A)  estrogen. 
B)  oxytocin. 
C)  prolactin. 
D)  hCG. 
A)  estrogen. 
B)  oxytocin. 
C)  prolactin. 
D)  hCG.

Question 11

Which of the following literally means "monster-producing"?

Accepted Answer

A)  Abortion 
B)  Involution 
C)  Teratogenic 
D)  Embryonic 
A)  Abortion 
B)  Involution 
C)  Teratogenic 
D)  Embryonic

Question 12

The blastocyst

Accepted Answer

A)  lives in the uterus. 
B)  is a fetal structure. 
C)  lives in the fallopian tube. 
D)  is an estrogen-secreting ovarian structure. 
A)  lives in the uterus. 
B)  is a fetal structure. 
C)  lives in the fallopian tube. 
D)  is an estrogen-secreting ovarian structure.

Question 13

Which of the following is most related to fertilization?

Accepted Answer

A)  Broad ligament 
B)  Implantation 
C)  Menses 
D)  23 chromosomes plus 23 chromosomes 
A)  Broad ligament 
B)  Implantation 
C)  Menses 
D)  23 chromosomes plus 23 chromosomes

Question 14

Which of the following is (are)most associated with the following: areola,suspensory ligaments,lactiferous ducts,and alveolar glands?

Accepted Answer

A)  Uterus 
B)  Breasts 
C)  Posterior pituitary gland 
D)  Ovulation 
A)  Uterus 
B)  Breasts 
C)  Posterior pituitary gland 
D)  Ovulation

Question 15

Which of the following is least characteristic of hCG?

Accepted Answer

A)  Secreted by trophoblasts 
B)  Maintains the corpus luteum 
C)  Maintains maternal levels of estrogen and progesterone 
D)  Exerts an oxytoxic effect 
A)  Secreted by trophoblasts 
B)  Maintains the corpus luteum 
C)  Maintains maternal levels of estrogen and progesterone 
D)  Exerts an oxytoxic effect

Question 16

What "lives" in the fallopian tube for a brief period of time?

Accepted Answer

A)  An embryo 
B)  A fetus 
C)  A blastocyst 
D)  A zygote 
A)  An embryo 
B)  A fetus 
C)  A blastocyst 
D)  A zygote

Question 17

Which group is incorrect?

Accepted Answer

A)  Extraembryonic membranes: graafian follicle, chorion, yolk sac 
B)  Twinning: monozygotic, dizygotic 
C)  Primary germ layers: ectoderm, mesoderm, endoderm 
D)  Genes: dominant, recessive, codominant 
A)  Extraembryonic membranes: graafian follicle, chorion, yolk sac 
B)  Twinning: monozygotic, dizygotic 
C)  Primary germ layers: ectoderm, mesoderm, endoderm 
D)  Genes: dominant, recessive, codominant

Question 18

Which of the following develops first?

Accepted Answer

A)  Morula 
B)  Trophoblast 
C)  Blastomere 
D)  Zygote 
A)  Morula 
B)  Trophoblast 
C)  Blastomere 
D)  Zygote

Question 19

Which hormone is secreted by the trophoblastic cells during implantation and helps preserve the corpus luteum?

Accepted Answer

A)  Estrogen 
B)  Progesterone 
C)  hCG 
D)  FSH 
A)  Estrogen 
B)  Progesterone 
C)  hCG 
D)  FSH

Question 20

Which structure is commonly called the bag of waters (it breaks prior to delivery and often signals the onset of labor)?

Accepted Answer

A)  Primary germ layers 
B)  Morula 
C)  Amniotic sac 
D)  Blastocyst 
A)  Primary germ layers 
B)  Morula 
C)  Amniotic sac 
D)  Blastocyst

Exam 27: Human Development and Heredity

Which of the following is formed when the chorionic villi burrow into the endometrial lining?

What is the name of the fine downy hair that covers the fetus?

How is a child with X and Y chromosomes best described?

Which of the following is a disclike structure where the fetal and maternal circulations meet (baby eats,excretes,and breathes at this site)?

Which of the following is least true of prolactin?

Which of the following is least related to the sex chromosomes?

The conversion of the corpus luteum to the corpus albicans

A mother-to-be infected with the rubella virus gives birth to a child with multiple birth defects.Which of the following is descriptive of the defects?

Which of the following organs involutes following delivery of baby?

The milk let-down reflex is most associated with

Which of the following literally means "monster-producing"?

The blastocyst

Which of the following is most related to fertilization?

Which of the following is (are)most associated with the following: areola,suspensory ligaments,lactiferous ducts,and alveolar glands?

Which of the following is least characteristic of hCG?

What "lives" in the fallopian tube for a brief period of time?

Which group is incorrect?

Which of the following develops first?

Which hormone is secreted by the trophoblastic cells during implantation and helps preserve the corpus luteum?

Which structure is commonly called the bag of waters (it breaks prior to delivery and often signals the onset of labor)?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Filters